980 results about "Bone healing" patented technology

Methods and devices transmit micromechanical forces locally on the millimeter to micron scale for promoting wound healing. Micromechanical forces can selectively be applied directly to tissue, in some embodiments, by using microchambers fluidically connected to microchannels. Each chamber, or in some cases, group of chambers, may be associated with a valve to control vacuum pressure, positive pressure, liquid delivery, and / or liquid removal from each chamber or group of chambers. Application of embodiments of the invention may shorten wound-healing time, reduce costs of therapy, enable restoration of functional tissue, and reduce the need for more invasive therapies, including surgery.

The present invention relates to orthopaedic implants having a fenestrated hollow shell and a biologic core. These design features provide an improved interface between the implant and the surrounding tissue, aiding fixation, and provide a vehicle for applying new bone healing and enhancing modalities, such as gene therapy, tissue engineering, and growth factors.

A device for providing improved wound healing is described. The device includes a vacuum system for applying a sub-atmospheric pressure to the wound, a gas supply system for applying a gaseous wound healing agent to the wound, and a controller connected with the vacuum system and the gas supply system that controls the applications of the sub-atmospheric pressure and the application of the gaseous wound healing agent to the wound. A method of using the device for improved wound healing is also described.

A method and apparatus for treatment of skin or other tissue, using a source of thermal, electromagnetic radiation, electrical current, ultrasonic, mechanical or other type of energy, to cause minimally-invasive thermally-mediated effects in skin or other tissue which stimulates a wound-healing response, in conjunction with topical agents or other wound healing compositions, for application on the skin or other tissue which accelerate collagenesis, such as in response to wound healing. The dosage and time period of application of the compositions are adjusted to prevent external or surface tissue damage.

Osteoinductive compositions and implants having increased biological activities, and methods for their production, are provided. The biological activities that may be increased include, but are not limited to, bone forming; bone healing; osteoinductive activity, osteogenic activity, chondrogenic activity, wound healing activity, neurogenic activity, contraction-inducing activity, mitosisinducing activity, differentiation-inducing activity, chemotactic activity, angiogenic or vasculogenic activity, and exocytosis or endocytosis-inducing activity. In one embodiment, a method for producing an osteoinductive composition comprises providing partially demineralized bone, treating the partially demineralized bone to disrupt the collagen structure of the bone, and optionally providing a tissue-derived extract and adding the tissue-derived extract to the partially demineralized bone. In another embodiment, an implantable osteoinductive and osteoconductive composition comprises partially demineralized bone, wherein the collagen structure of the bone has been disrupted, and, optionally, a tissue-derived extract.

An improved distraction bone screw and a method for its use are described. The distraction screw is comprised of an implantable distal segment and a detachably secured proximal segment. The distal segment includes a head portion and a threaded shank portion. The proximal segment is represented as an elongated body having an internal bore that extends through its length. A deployable member is disposed within the bore, which is extendible outside the internal bore to securely couple to the distal segment. As an assembly, the distraction screw is used to affix and realign bone during surgical reconstruction. Upon completion of the surgical work, the proximal segment is removed and the distal segment is left attached to the reconstructed bone. Securely affixed, the distal segment provides an additional point of fixation for the skeletal plates that are used to preserve the bony alignment while bone healing occurs. The affixed distal segment will also provide a ready mechanism for distraction screw replacement at the time of surgical revision without obligatory plate removal. Different embodiments of the proximal segment, distal segment and the rotational locking mechanisms which inhibit the rotation of one segment relative to the other during deployment were also described. In addition, in cases where the distraction screw must be placed into the bone at an inclined angle, poly-axial heads were provided so that proper skeletal plate placement can still be accomplished.

Assemblies, systems, and methods convey fluid from an internal wound site or body cavity by applying negative pressure from a source outside the internal wound site or body cavity through a wound drain assembly that is placed directly inside the internal wound site or body cavity.

A long term oxygen therapy system having an oxygen supply directly linked with a patient's lung or lungs may be utilized to more efficiently treat hypoxia caused by chronic obstructive pulmonary disease such as emphysema and chronic bronchitis. The system includes an oxygen source, one or more valves and fluid carrying conduits. The fluid carrying conduits link the oxygen source to diseased sites within the patient's lungs. A collateral ventilation bypass trap system directly linked with a patient's lung or lungs may be utilized to increase the expiratory flow from the diseased lung or lungs, thereby treating another aspect of chronic obstructive pulmonary disease. The system includes a trap, a filter / one-way valve and an air carrying conduit. In various embodiments, the system may be intrathoracic, extrathoracic or a combination thereof. A pulmonary decompression device may also be utilized to remove trapped air in the lung or lungs, thereby reducing the volume of diseased lung tissue. A lung reduction device may passively decompress the lung or lungs. In order for the system to be effective, an airtight seal between the parietal and visceral pleurae is required. Chemical pleurodesis is utilized for creating the seal and various devices and / or drugs, agents and / or compounds may be utilized to accelerate wound healing in thoracic anastomosis applications.

An engineered regenerative biostructure (erb) for implantation into a human body as a bone substitute, which includes an internal microstructure, mesostructure and / or macrostructure to provide improved bone in-growth, and methods for making the erb. Under one aspect of the invention, the biostructure has resorbable and nonresorbable regions. Under another aspect of the invention, the biostructure is constructed of hydroxyapatite, tricalcium phosphate and / or demineralized bone. Under yet another aspect of the invention, the porous biostructure is partially or fully infused with a resorbable, nonresorbable or dissolvable material.

Assemblies, systems, and methods convey fluid from an internal wound site or body cavity by applying negative pressure from a source outside the internal wound site or body cavity through a wound drain assembly that is placed directly inside the internal wound site or body cavity.

Processes for producing interbody spinal implants having a body with a top surface, a bottom surface, opposing lateral sides, opposing anterior and posterior portions, a substantially hollow center, and a single vertical aperture; and optionally, one or two integration plates affixed to the body. The processes include applying an additive process, a subtractive process, or both processes to at least one surface of the interbody spinal implant to form a roughened surface topography having a regular repeating pattern. The roughened surface topography is specifically designed to provide certain frictional characteristics, load dispersion, and to influence the biological responses that occur during bone healing and fusion.

Described herein are methods and compositions comprising a mixture of silk polymer and hydroxyapatite. The methods described herein can be used to prepare a mixture of silk polymer and hydroxyapatite and further provide mixtures that can be molded into a desired shape. Also encompassed herein are compositions comprising a mixture of silk polymer and hydroxyapatite having a desired shape, which can further be implanted, for example, to facilitate bone healing or tooth structure or support. Such compositions can also include agents, such as therapeutic agents, or cells.

The composite spongy biological dressing contains chitosan, collagen and calcium alginate with weigh tmixing ratio o f 0.5-8:0.5-8:0.1-8. Its preparation method includes the following steps: selecting chitosan and collagen type I, adding calcium alginate, compounding and cross-linking, using buffer solution to make neutralization, emulsifying, prefreezing and one-step freeze-drying so as to obtain the invented dressing with good biological compatibility and strong adhesion property. Said invented dressing possesses active function of promoting wound healing and hemostatic action, can be combined with anti-bacterial medicine to obtain gene engineeirng dressing for curing wound surface infection, also can be combined with active growth factor or active cell to form gene engineering dressingfor curing intractable ulcer and burn wound surface.

Disclosed are a method and a corresponding pharmaceutical composition for treating damaged cartilage and subchondral bone. Neurogenic compounds in general and neuropeptides in particular have been found to be highly effective in stimulated repair of cartilage and bone damaged due to traumatic injury, ligament disease, and disuse. Preferred active ingredients for use in the method and corresponding pharmaceutical composition include calcitonin gene-related peptide (CGRP), cholecystokinin (CCK), dynorphin, enkephalin, galanin, neuropeptide Y (NPY), neurotensin, somatostatin, substance P (SP), thyrotropin-releasing hormone (TRH), vasoactive intestinal peptide (VIP).

Systems and methods are disclosed to enhance bone growth by stimulating bone sites for bone regrowth, fusion, or grafts. The invention uses electrical stimulation of the bone site, where vibrational energy from a source is received by an implanted device and converted to electrical energy and the converted electrical energy is used by implanted electrodes to stimulate the bone site. The vibrational energy is generated by a controller-transmitter, which could be located either externally or implanted. The vibrational energy is received by a receiver-transmitter, which could be incorporated into an orthopedic device, such as pin, cage, plate or prosthetic joint used for bone healing.

Present invention depicts a poly-porous (micropore) hollow screws as diffusion chamber filled with core matrix for targeted delivery of growth factors and bone marrow stem cells. The screws comprise at least two parts: the distal part of the screw consists of the tip of the screw made of poly porous material and hollow inside proximally. It has threaded navel attached to the threaded nipple of the distal part of the proximal screw which has the screw head and is made of the solid material of the same kind. The screw head had hexagonal recess targeted for screw driver insertion. Assembly of screw created a chamber in the middle of the screw. The chamber is filled with core matrix consisting of gelatin nano-particles pre-impregnated with BMPs (BMP2 / BMP7 for bone or BMP12 for tendon, ligament) and fibrin sealants or Chitosan dispersed with bone marrow stem cells and / or other growth factors. Bioactive protein core material is prepared during the surgery and filled the chamber of the screw by the surgeon. Fibrin sealants or Chitosan will polymerize to form a gel to hold the growth factors and stem cell in place. The screw can be used as the lag screw or other function to provide mechanical fixation in variety of condition. Once the screw implanted in the human body, the fibrin sealant or Chitosin / gelatin nano-particles are gradually degraded and slowly release growth factors and stem cells via micropores of screw to facilitate the bone healing and regeneration. The gelatin nanoparticles and fibril sealant / or Chitosan matrix also serve as the scaffold and platform for bone in-growth to the screw or alternatively, the stem cell inside of screw can regenerate new bone, providing the biological fixation. At the mean time as the bone regenerate and / or in growth, mechanical strength of the screw increased.

An interbody spinal implant, such as a solid-body or composite implant, includes at least one graft contact surface as one or more of the internal surfaces of the implant. The graft contact surface, for example, having at least one ridge or groove is designed to contact and promote retention and stabilization of bone growth-inducing materials placed within the internal openings of the implant body. In addition, the ridges or grooves may influence the biological processes to promote bone healing and fusion. Also disclosed are processes of fabricating the graft contact surfaces and other surface topographies on the implant.

The invention relates to a multi-layer collagen article useful for wound healing, comprising at least two layers; wherein at least one layer, facing the wound side, is comprising an effective amount of non or partially cross-linked collagen; and at least one layer comprising an effective amount of highly cross-linked collagen matrices. The invention also relates to a method for the production of collagen article.

A system (800) for processing accelerometer data is disclosed. The system (800) includes an accelerometer (806), a first processor (810), a power supply (816), and a second processor (804). The accelerometer (806) measures a physiological acceleration parameter. The first processor (810) is operatively connected to the accelerometer (806). The first processor (810) is configured to receive the acceleration parameter from the accelerometer (806) and configured to output machine readable acceleration data. The machine readable acceleration data includes time domain accelerometer data. The power supply (816) is electrically connected to the first processor (810). The second processor (804) is configured to receive the machine readable acceleration data and transform the time domain accelerometer data into frequency domain accelerometer data. The frequency domain accelerometer data may be used to estimate patient healing status.

This invention is directed to methods for treating conditions which present with low bone mass in a patient in need thereof using continuous combination therapy with a synergistically effective combination of an EP4 receptor selective agonist or a pharmaceutically acceptable salt thereof, such as 5-(3-{2S-[3R-hydroxy-4-(3-trifluoromethyl-phenyl)-butyl]-5-oxo-pyrrolidin-1-yl}-propyl)-thiophene-2-carboxylic acid or a pharmaceutically acceptable salt thereof; and an estrogen or a pharmaceutically effective salt thereof, The present methods are useful for treating conditions that present with low bone mass including osteoporosis, osteotomy, osteoporotic fracture, childhood idiopathic bone loss, periodontitis and low bone mass and for enhancing bone healing following facial reconstruction, maxillary reconstruction or mandibular reconstruction, inducing vertebral synostosis, enhancing long bone extension, enhancing the healing rate of a bone graft or a long bone fracture or enhancing prosthetic ingrowth in a patient in need thereof.

The invention discloses a double-layer membranous tissue repair material and a preparation method thereof, wherein, a cell-free membranous biological derivative material is used as a surface layer, and a fibroblast is compounded in the interior of a biological support material to form a substrate, and then the surface layer and the substrate are combined in a chimeric way to form the double-layer membranous tissue repair material; a compact surface layer structure can effectively reduce the loss of water, electrolytes and protein from surface of wound, avoid the invading and the reproduction of bacteria to the impaired surface of wound as well as prevent the infection of the surface of wound, thus being beneficial to epitheliosis and epithelial growth; the substrate can directly repair the surface of wound, promote the ingrowth of cells around the surface of wound and the angiogenesis, induce the differentiation from stem cells to skin cells and quicken wound healing; compared with the existing products, the tissue repair material has the advantages of being capable of promoting the regeneration of skin, improving the elasticity, the flexibility and the mechanical abrasion resistance of skin after the surface of wound is healed, reducing hyperplasia of scar tissues, controlling the contracture, having excellent biocompatibility, increasing the success rate of transplant and improving the quality of healing; the invention has wide material resources and simple production method; the double-layer membranous tissue repair material prepared is applicable to the clinical treatment of skin defect caused by inflammation, ulcer, thermal burns, iatrogenicity and the like.

Compositions and methods of using the compositions for wound healing are provided. The compositions include one or more digestive enzymes, for example, one or more protease, lipases, and amylases. The compositions can be formulated as topical pharmaceutical compositions and can be used for faster healing through stimulation of epidermal cells in the absence of scarring. The compositions may deposit a short term fibrosis and help prevent re-opening of wounds. The compositions may improve recruitment of white blood cells, thereby inducing or enhancing growth factor and immune system activation via an enzyme antibiotic effect. The compositions may enhance the epidermal integrity beyond that of the normal physiological restorative process. Application of the compositions may result in greater re-growth of hair on regions of wounds healed with enzyme and reduced alopecia. The compositions may be administered without causing allergic reactions and without causing biological damage or burns.

The invention relates to a bone repair porous bracket, which comprises a substrate with a bionic porous structure and growth factor controlled-release microspheres, wherein the growth factor controlled-release microspheres are adsorbed into gaps of the bionic porous structure on the substrate or are dispersed into the substrate by being uniformly mixed with substrate raw material in a substrate forming process. The invention further provides a rapid forming method for the bone repair porous bracket. The method comprises the following steps of: preparing growth factor controlled-release microspheres; forming a substrate; and adsorbing. The invention further provides another rapid forming method for the bone repairing porous bracket. The method comprises a step for preparing growth factor controlled-release microspheres and a step for forming a substrate. The growth factor controlled-release microspheres are introduced into the bracket, bone growth can be induced under the action of the controlled release of growth factors, and inward bone tissue growth is facilitated through a porous structure formed by degradation of the controlled-release microspheres, so that bone tissue regeneration repair is achieved, and bone healing is facilitated effectively. Three-dimensional printing is performed by adding controlled-release microspheres and adopting a rapid forming technology, and a forming process is simple and rapid.

Cells, compositions, and methods of cell therapy for administering a therapeutically effective amount of stem cells or cell concentrate to achieve accelerated wound healing of normal and chronic wounds, while minimizing the formation of scar tissue.

A bone plate and system is provided. The bone fixation plate conforms to the contour of an irregularly shaped bone and eliminates the need for pre-bending or intraoperative bending of the plate. The bone plate is applied to the bone in a generally flat condition and the process of installing and tightening the bone screws in the prescribed order serves to contour the plate to the plate to the underlying bone while providing sufficient strength to effect bone healing. The geometry of the plate allows the plate to follow the contour of an irregularly shaped bone, preventing prominence and patient palpability and streamlining the surgical procedure.

An NMDA antagonist (such as ketamine) is administered with a safener (such as clonidine) in patients suffering from neurologic disorders other than pain. The ketamine is adminsitered at a dosage that causes slurred speech, for a span of several days. This treatment enables a patient's nervous system to return to a healthy “set point”, also called an improved stable neural homeostasis, in a manner similar to a broken bone healing itself if protected from jostling and reinjury by a cast. In at least some patients, this treatment can ease problems such as addictions to illegal or pain-killing drugs, nicotine, or alcohol, compulsive or criminal behavioral problems, severe depression, obsessive-compulsive disorders, phobias, etc. It may also provide some relief in some patients for problems such as chronic fatigue, chemical sensitivities, allergies, autoimmune disorders, and diabetes.